Dry kiln door



Feb. z3, 1932.

o. F. sHATTucK DRY KILN Doon Filed Oct. 20, 1928 2 Sheets-Sheet Feb. 23, 1932. yo. F. sHAT-TUCK DRY KILN DooR Filed Oct. 20, 1928 2 Sheets-Sheet l N VEN TOR.

A TTORNEYS.

Patented Feb. 23, 1932 UNITED STATES PATENT OFFICE DEVILLE F. SHATTUCK, OF INDIANAPOLIS, INDIANA DRY xILN :Doon

Application tiled October 20, 1928. Serial No. 313,721.

"i saine did not WarpV it was because it had received special packing or crating prior to shipment. A metal door has many advantages over the Wooden door so that in spite of such ivarpage the metal doorhas gradually come to replace the Wooden door. The wooden door could usually be niade on the ob.

The chief feature of the invention, therefore, consists in providing a knoc-kdown metal door traine and constructing the same so that it is readily assembled on the job and to which may be added materials locally obtainable.

Other features of the invention consist in the several novel fixtures associated With other and standard parts employed.

rFhe full nature of the invention will be more clearly understood from the accompanying drawings and the following description and claims.

In the drawings, Fig. 1 is a perspective view of part of a kiln including the door opening, the door associated therewith and a part of the door broken away to:4 show other parts. Fig. 2 is a vertical sectional view through a portion of the door. Fig. 3 is a perspective view enlarged of one type oi hanger for the door. Fig. 4 is an elevation with parts in section of a frame corner and inner bracket construction. Fig. 5 is a perspective vieiv of a novel bolt used With the door. Fig. 6 is an elevational view of a part of a. kiln including the door opening, the door associated therewith and a part of the door being brokenaway to show its structural details. Fig. 7 is a vertical sectional view through a portion ofthe door. Fig. 8 is a perspective view of an exterior traine bracket construction. Fig. 9 is an end elevation oi' a carrier hook. Fig. 10 is a plan view of a clamp and the door and opening frame in section.,

In the drawings 10 indicates the front Wall of a kiln having an opening, the bottom face ot' which is deiined by the angle iron 11 and the sides oi which are defined by the angle irons 19, the top of the opening defined by the header 13 Whichinounts a rail or track 14 carrying the! brackets or hangers 15 and 16, associated with plates 17 and 18 carried by the door Also associated With the door is an angle iron toot board 19 which forms a `groove 2O with the angle iron 11. It will be apparent that the only Way the door can be removed from thekiln opening is to elevate the door until it clears the `groove 20 formed by angle iron 19. The door is thus rigidly and quite tightly associated with the opening of the kiln. The details of the brackets and plates to 18, inclusive, are shown in Fig. E3, and since the saine is disclosed in prior patents no further description need be here given, except to point out that the rail 14 supports a door lifter or carrier Which engages 'torni of angle iron 22 is, provided Which is receivable by groove formed between angle irons 19 and 11.

To secure the bracket hangers `18 to the door and the tongi-ie angle iron 22, bolts 23 having the heads 24 are provided, and in the construction of the door the aforesaid parts are utilized and the nuts 25 are mounted upon the bolt. Said bolt is slotted as at 26 for backing oil" the nut, since it Will be apparent that, as shown in the upper portion of Fig. 2, accessibility to the head 24 oii bolt 23l is impossible, the saine being prevented by the angle iron 27. The screws 28 anchor the cross or top batten toit and, therefore, the entire door incloses head 24.

Various forms of interior heat insulating fillers for the door frame may be provided and herein a preferred form is illustrated and described. 1t consists of a suitable wooden frame built on the ob or shipped knockdown to conform to the angle iron framework or exterior outline of the door when assembled. The filler units may be of any desired size and will be built to correspond to the spacing or spacings within the door frame when the latter is assembled. The construction includes vertical members 30 tied together at the top and bottom by cross battens 29 and in spaced relation suitable slats 31 extend in parallel relation across the unit. Herein they are shown extending horizontally. They may equally as well extend vertically. Secured to the slats 31 are sheets of insulating Vmaterial 32 such as celotex, a standard commercial insulator slab or panel and since the Wooden framework is formed by the battens and slats and members 30 the insulating material can be cut and secured to the same.

Also secured to the battens or wooden exterior framework of the unit on the exterior side of the door is the galvanized sheet iron 33. Upon the interior or heat exposed side of the door, the whole is faced with asbestos roofing paper 34 or the like. The same is covered by galvanized sheet metal 35. To seal ,the wooden unit in the metal frame, the sealing strips 36 are interposed therebetween upon the exterior side of the door and the same is comprised of asbestos roofing paper.

In Figs. 6 and 7 a slightly modified form of construction is illustrated and has parts similar to or like parts shown in Figs. 1 and 2 having numbers similar thereto but increased by 100. 110, therefore, indicates the front wall of a kiln having the door opening, the bottom face of which is defined by the angle iron 111 and the sides of which are defined by angle irons or similar construction. The

top of the opening is defined by a header construction which mounts a rail or track 114 and the brackets or hangers 115 and 116 associated with which are the door hanging plates 117 and 118, respectively, carried by the door. An angle iron foot 119 forms a groove 120 with the angle iron 111 and a tongue in the form of an angle iron 122 is receivable on the bottom of the door by said groove. As heretofore set forth, the door is lifted out of the groove upon its hinged construction support- .'ing it at the top and then after it clears the screw 140 has a cylindrical body portieri which supports a collar 141 having a ace 142 transverse to the cylindrical opening 143 therethrough. The collar has an opposite but inclined face 144. Another collar 145 is carried by the bolt or screw 140 and has a face 146 parallel ,to face 142 and-a face 147 inclined thereto and substantially parallel to face 144. The two collars are separated by boss 148 substantiallycylindrical in outline, the axis of which, however, intersects the bolt opening axis but which is inclined thereto and at an angle suiiicient to position the same perpendicular to the inclination or planes of the faces 144 and 147. The two collars are similar` but reversed. r1`hey are locked together against relative rotation by a pin 149 carried by one of the collars. The cylindrical boss 148 provides an angular pivot for a bar 151 having an *openingl 152 therethrough, which is substantially transverse to Athe plane of the bar,thereby positioning the bar parallel to the inclined planes of the collars. The bar terminates in the clamping portionor member' 152 and also in an oppositely projecting portion 153 suitably threadedas at 154. A plurality of these clampin members may be employed (see Fig. 6) an connected by a bar 155 which is secured as at 156 to each handle 153 by the threaded portion 154.

Actuation of bar 155 serves to swing a le- Lver clamp 151 about the cylindricaly axis and lin so doing, the clamping pressure is increased or decreased as the clamping member 152 approaches or recedes from the door 109. To provide suitable adjustment all that is required is to loosen bolt 140 and turn the two relatively immovable collars upon said bolt as a'pivot until the desired clearance andpressure obtains and then tighten up the lag screw until the desired pressure is applied to the door 109 when the clamp is in the pressure applying position.

In Figs. k6 and V8 is'shown an angle corner plate of the outside type, said plate having the plates 100 and web 101 uniting `the same with an included gap 102 therebetween.

In Figs. 6 and 9 is shown a hook for anchorage to the door carrier when employed. 103 indicates the base, 104 the hook and 105 the strap that extends across the door and is utilized for a support.

The modification shown in Figs. 6 and 7 is similar to that shown in Figs. 1 and 2 in VInthis form of the invention the frame can be entirely disassembled, shipped knockdown, and then reassembled at the kiln.

It will be apparent from the foregoing that various modifications of the aforesaid p construction might be employed. In its broadest phase the invention consists of a knockdown metal door frame, a unit or unitized ller construction insulatably mounted in the metal door-,trame when assembled and sheet met-- al prof/ction Where the iiller is not inclosed by the door frame. Each filler unit includes a skeleton wooden framework for supportin g' heat insulating material and the asbestos sheet material covering for protecting the same.

The invention claimed is:

l. A metal kiln door comprising a substantially independent peripheral metal self-sustaining frame, an inner substantially independent and auxiliary wooden frame secured thereto within the metal frame and including slats in spaced relation, sheet metal siding for meta lically inclosing said wooden frame, and heat insulation interposed between the slats and the heat exposed sheet metal siding.

2. A metal kiln door comprising a substan tially independent peripheral metal self sustaining frame, an inner substantially independent and auxiliary peripheral Wooden frame rigid therewith and enveloped thereby and including slats arranged in spaced relation, sheet metal siding for metallically inclosing said metal frame, said auxiliary trame and slats, heat insulation and interposed between slats and heat exposed metal siding, and additional heat resisting packing interposed between the sheet metal siding and the metal frame for sealing the auxiliary trame in the metal frame.

3. A device as deiined by claim l, characterized by the. addition of sheet insulation secured to the opposite side of said slats and interposed between the same and the other siding, and sheet asbestos interposed between the heat exposed sheet metal siding and the sheet insulation immediately adjacent thereto.

4. A metal kiln door comprising a substantially independent peripheral metal self sustaining frame, an inner substantially independent and auxiliary wooden frame secured thereto within the metal frame and including slats in spaced relation, sheet metal siding for metallically inclosing with the metal traine said auxiliary frame, and heat insulation material within the inclosure thus formed and supported by the auxiliary frame.

5. A kiln door comprising a substantially independent peripheral metal self sustaining traine, an inner substantially independent and auxiliary frame secured thereto Within the metal frame and including slats in spaced relation, and heat insulation secured to the G0 auxiliary frame.

In witness whereof, I have hereunto affixed my signature.

ORVILLE F. SHATTUCK. 

